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单选题 What is produced in the final stages of anaerobic wastewater treatment
学科：2023-2024-1专业英语
时间：2023-10-13 03:51:54
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题目1单选题
Anaerobic wastewater treatment uses( )agents to remove impuritiesA. biologicalB. physicalC. chemicalD. medical
题目2单选题
Anaerobic wastewater treatment mainly uses microorganisms to digest the polluted parts of the water in an( )environmentA. oxygenB. oxygen-freeC. acidD. alkaline
题目3单选题
What is produced in the final stages of anaerobic wastewater treatmentA. fatty acidsB. proteinC. celluloseD. methane gas
题目4单选题
The biogas produced in the final stages consist of( )A. methaneB. carbon dioxideC. hydrogenD. both A and B
题目5单选题
Many scientists think that ( )traps heat from the sun in the atmosphere, thereby increasing global temperatureA. oxygenB. hydrogenC. nitrogenD. carbon dioxide
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